The fatigue of steel columns indirectly subjected to crane loading is generally not taken into account. But fatigue failure occurred at the columncap in some workshops.
间接承受吊车荷载的厂房钢柱，一般不考虑疲劳问题，但是在一些车间的钢柱上却出现了疲劳破坏。
2
The slab column structure without columncap which is a new type of building structure has not been used usually in engineering practice, especially rarely applied in earthquake regions.
无柱帽板柱结构作为一种新型的房屋结构形式， 在工程实践中应用不多， 尤其是在地震区的使用就更少。
3
The recovery ratio of CAP in immunoaffinity column is 99.8%.